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Grade 12th passVectors

hello sir..Can you tell how to solve numerical like this

Profile image of ravi
8 Years agoGrade 12th pass
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1 Answer

Profile image of Arun
8 Years ago
Dear Ravi
I can understand your problem that in competition we don’t have so much of time to calculate these expreeion exactly.
Please try to take 6.624 as 6.6 as this will short your calculation.Also all the terms are simple to solve.
Regards
Arun (askIITians forum expert)